Hubble's Law: Redshift Measurements on a Galaxy Show That It

question 1

Multiple Choice

Hubble's law: Redshift measurements on a galaxy show that it is receding from us with a velocity of 7240 km/s. Estimate how far away the galaxy is if the Hubble constant is 22 km/s per million light-years. (c = 3.00 × 10⁸ m/s, 1 ly = 9.461 × 10¹⁵ m, 1 y = 3.156 × 10⁷ s)

• A) 3.1 × 10²⁴ m
• B) 1.2 × 10²⁶ m
• C) 1.2 × 10²⁴ m
• D) 4.1 × 10²³ m
• E) 2.0 × 10²² m

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Definitions:

Unconscious Anxiety

Anxiety that resides outside of conscious awareness, often manifesting through physical symptoms or behaviors.

Ego

Part of the psyche that channels libido to be acceptable to the superego and within the constraints of reality.

Id

According to Freud, the most primitive part of the unconscious; consists of drives and impulses seeking immediate gratification.

Sexual Urges

Natural, intense desires or inclinations toward engaging in sexual activities.